One of the most important functions of the placenta is to act as a barrier to keep potentially harmful materials such as alcohol or viruses from hurting the baby.

Question

Quizplus · Accepted Answer

While the placenta does perform many critical functions, including nutrient and gas exchange between mother and fetus, it does not act as an absolute barrier against all potentially harmful substances. Alcohol, certain viruses (like Zika or rubella), and other substances can cross the placenta and potentially harm the developing fetus.

One of the Most Important Functions of the Placenta Is